/*
 *  Copyright 2016-2019 Netflix, Inc.
 *
 *     Licensed under the Apache License, Version 2.0 (the "License");
 *     you may not use this file except in compliance with the License.
 *     You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 *     Unless required by applicable law or agreed to in writing, software
 *     distributed under the License is distributed on an "AS IS" BASIS,
 *     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *     See the License for the specific language governing permissions and
 *     limitations under the License.
 *
 */
package com.netflix.hollow.tools.split;

import com.netflix.hollow.core.read.engine.HollowTypeReadState;

public class HollowSplitterOrdinalCopyDirector implements HollowSplitterCopyDirector {
    
    private final int numShards;
    private final String[] topLevelTypes;
    
    public HollowSplitterOrdinalCopyDirector(int numShards, String... topLevelTypes) {
        this.numShards = numShards;
        this.topLevelTypes = topLevelTypes;
    }
    
    @Override
    public String[] getTopLevelTypes() {
        return topLevelTypes;
    }

    @Override
    public int getNumShards() {
        return numShards;
    }

    @Override
    public int getShard(HollowTypeReadState topLevelType, int ordinal) {
        return ordinal % numShards;
    }

}
